Concrete-forming apparatus.



D. G. BENDER.

CONCRETE FORMING APPARATUS.

APPLlcATloN FILED MAR.. 9. 1911.

,275, 1 2 1 Patented Aug. 6, 1918.

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D. G. BENDER.

CONCRETE FURNIING APPARATUS.

APPLICATION FILED MAH. 9, |911.

l ,2?5, 1 2 1 Patented ug. 6, 1918.

4 SHEETS-SHEET 2.

D. GVBENDER. CONCRETE ,FRMING APPARATUS.

APPLICMIQNVHLED MAR.9,1911.

Patented Aug. 6, 1918'.

4 SHEETS-SHEET 3.

D. G. BENUER.

CONCRETE FORMING APPARATUS. APPLICATION man MAR. 9, '1911.

l ,275, l 2 1 Patented Aug. 6, 1918.

4 SHEET-S-SHEET 4. d, 1 gll. 342 5?' {1Q-'lj drawings, in which DAVID e. BENDEaJor BLUE ISLAND, ILLINoIs.

coNcnETE-FORMINGAPPARATUS.

Speciication of Letters Patent.

Patented Aug. 6,1918.

Application led March 9, 1917. Serial No. 153,697.

To all 'whom z'may concern;

Be it known that I, DAVID Gr. BENDER, a citizen of the United States', residing at Blue Island, lin the county of Cook and State of Illinois, have invented certain new and useful Improvements in Concrete-Forming Apparatus, of which the followingI 'is' a specification. f Y

This invention has'v to do with molding apparatus forforming in plurality concrete units or blockssimu'ltaneously from slush material, said units being of suchjconformation as to facilitate quite materially fthe process of wall construction due tothe ease with which the blocksmay be assembled and that by labor not necessarily highly skilled in the'art of masonry. 'j

In its embodiment the apparatuscomprises molding elements arranged upon a suitable support and` movably mounted for disposition in cooperative relation with respect to other mold elements to thereby provide a complete mold form, means beingemployed for actuating said movable elements so as to provide for interlocking of thev mold form or release of the other elements topermit 0f ready removal of the molded material.

It is further comprehended that the apparatus shall embody recess, or groove forming instrumentalities by means of which the blocks may betied; together in wall construction'and interlocked with the plastic 'material used as a liller or foundation therefor. The wall construction just referred to is an especially advantageous feature as will appear more'fully hereinafter.

For a full understanding 'of the present invention, referenceis-'to be had to' the Afollowing description and the accompanying Figure 1 is aside elevation of an ,apparatus for forming the concrete units.`

Figf2'is 'a transverse Asection al view on the plane indicated by the line 2-2 of Fig. 1. Fig. 3 is a similar section to that referred to `regarding Fig. 2, showing the f side' meinbers moved outwardly and the molded inaterial released. f y Fig.` 4 is a fragmentary sectional vView taken about 0n the plane indicated bythe line 4-4 of Fig. 2. 4

Fig. 5 is a fragmentary longitudinal sectional view of the'v apparatus.I 1 j' Figs. 6, 7 and 8 areside, bottom and top viewsrespectively of the: transverse mold supports or elements used in this device.

side element Fig. v9 isy a sectional view on the line 9-9 ofFig.8.

Fig. 10 is a perspective view of a inishingtool for the apparatus.v

Figs.l 11 and v12 are end elevations of a spacingvmember used in the constructionof walls with my form of block.v`

Fig.l3 isa horizontal sectional view of a wall construction in which the spacingy inember is employed for forming an air space.

Fig. 14:"is` a fragmentary'perspectiveview of this spacing member showing its locking element more clearly.

y Fig. 15'is a fragmentary sectional v iew of a wall constructionl showing the applicajtionof the tie members.

Fig. 16 is a fragmentary sectional view 'showing the use of the blocksas asurface finishing wall covering. Y

Fig. 17 is a perspective view 0f a-mold projections. j

Throughout the following detail descrip tion, and on the s everalgiigures of the draw ings, similar parts are vreferred 'to by like reference characters. f

In carrying out the construction of the molding apparatus comprehended by this invention, I ypreferably employ a wheeled 'sy lsupport or car, which is readily movable after the material has beenin'troduced into its component' molds'to a suitable shed or provided with recess forming other "place for the curing process of the i 'molded material. v Such car or truck conf sists'of the side channel members 1 mounted upon suitable wheels 2 and connected by a series of transverse members 3, constituting bottom supporting means for material to be' molded. These transverse members are most vclearly shown in Figs. 6 to 9 of the' drawings 'froinwhich it will be noted'that they are narrow metallic elements' substantially T- shaped in cross section The'ends of these members are flattened and secured jto side members l by means of fastenings l and on the surface each of said members is provided with a groove forming rib 5 las well as a seriesof lateral recess formingl projections 6. The transverse bars 3 are also formed with aseries of vertical passages 7 through which recess forming elements hereinafter to bedescribed-are adapted to pass in the use of the Vmolding device. j l l "fThese bars just `described are attachedito the truck frame in' close spaced relation. .as Shown in Fig. 4 andV they form the bottom iio ,inFigsll to.13, to one side ofwhich are suitably connected vertically arranged cam members 38. Each .cam member 38 is provided with an angularterminal 39 at its top and is connected to the spacing member 37 by suitable hinges 40. At the opposite side of the cam member is hingedly connected a flexible locln'ng plate 41 held against the side 37 by guides 42. This locking plate is serrated at one edge as indicated at 43 so that when" the cam members are operated they will engage with the tie members 34 interlocking the spacing member in position to sustain the filled material poured thereinto to form the wall construction shown in Fig. 13.

In Fig. '16 I have shown another use for the veneer blocks of my construction. After the formation of the foundation for a building and the construction of the siding 44 disposed thereon, the latter may be suitably inished with these veneer blocks, each block being held in position by large headed nails 45, the headed extremity ofwhich is bent downwardly into the groove of the block and thus holds the block against the face of the siding.

The advantages and simplicity of the apparatus and wall construction hereinbefore described will be apparent to those skilled in the art to which the invention relates and I desire it to be understood that slight modilications could easily be made in the details of construction without departing from the spirit of the invention and within the kscope of the appended claims.

Having thus described my invention, what I claim as new is: v

l. In molding apparatus of the class described, the combination of a support including bottom supporting means for material to be molded, movable members mounted thereupon, means for moving said members into operative position, for sustaining material to be molded into units in molding position, stationary mold sides disposed between the movable members aforesaid, and mold ends carried by said movable members in spaced relation and movable by and with said members into position intermediate the mold sides whereby to hold said sides in position to receive the material to be molded.

2. In a molding apparatus of the class described, the combination of a support including bottom supporting means for material to be molded, wall members movably mounted thereupon, mold sides for each unit of material to be molded` arranged transversely between the movable wall 'members aforesaid Yupon the Asupport and held in tents of the mold. In molding apparatus ofthe class dejoperative position .byA said movable wall members, and meansfor moving vsaidv wall ymembers away from the mold sides without disturbanceofsaid Vsides whereby to release the mold sides for removal with the conscribed, the combinationof a frame, side members movably mounted thereon, a series of mold elements attached to each side member, a pair of removable mold elements disposed transversely of the frame between each pairof mold elements on the side members, and means for moving said side members on the frame and the mold elements thereon into interlocking engagement with respect to the transverse removable elements for supporting the latter in molding position.

4. In molding apparatus of the class described, the combination of a support, side members thereon, mold ends mounted on said support side members in spaced relation, mold sides arranged back to back between the support side members, said ends v an arch member and a cam coperativel therewith.

6. In molding apparatus of the class described, the combination of a supporting frame, side members mounted thereon, spaced transverselyarranged bottoms, mold sides adapted for disposition.y between the bottoms, longitudinally arranged supports below the bottoms on which the mold sides rest, and `means engageable with the ends of the mold sides for holding the same Lin `molding position on the rest supports and closing the ends of the molds.

7. A block molding machine for manufacturing a plurality of units from plastic material simultantously comprising mold bottoms, removable stationary transversely arranged mold sides coacting with said bottoms, tongue and groove forming mold ends movably mounted at each endof the mold sides for interposition between the respective mold sides to form a complete molding lunit and means for moving said ends.

, 8. A block'molding. machine for manumaterial simultaneously comprising spaced mold bottoms, mold sides adaptedgfor ldisposition rbetween the bottoms; supporting rods extending transversely of the' bottoms and constituting rests for the sides Vaforesaid, mold ends, supporting means common `and out of coperative position Withrelspect kto thesides. 10

In testimony whereof I afx my signature.

DAVID G; IENDER.

n orpiesof this'kpatent may beiobtaine forl verv cents cath, by addressing the Cpmmissionerof Patents,

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